#27148: Invalid input for UUIDField with ModelMultipleChoiceField throws
ValueError, not ValidationError
----------------------------+--------------------
Reporter: blueyed | Owner: nobody
Type: Bug | Status: new
Component: Forms | Version: 1.10
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
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I have added a test in https://github.com/django/django/pull/7180.
This test shows that an invalid value for a UUIDField will bubble up as
`ValueError`. The problem here seems to be that `get_prep_value` just
passes through the (invalid) string.
Only when the queryset is evaluated just below via the following code,
the ValueError from `UUIDField.get_db_prep_value` is raised and bubbles
up:
{{{
self.queryset.filter(**{'%s__in' % key: value})
pks = set(force_text(getattr(o, key)) for o in qs)
}}}
Explicitly evaluating the queryset above already would fix it, but that
would get done for every selected value then.
Needs `UUIDField` to be fixed for this, e.g. raising the `ValueError`
from `get_prep_value` already?
In this case other fields would need the same fix probably (from what I
have seen while skimming the code).
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Ticket URL: <https://code.djangoproject.com/ticket/27148>
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